Volume 15, Issue 47 (2-2015)
Zanko J Med Sci 2015, 15(47): 10-22 |
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salehi K, Moussavi S P, Mansouri B, Gharibi F. Performance of Multi Wall Carbon Nanotubes in Phosphor Removal from Aqueous Solutions: (Adsorption isotherm and kinetic study). Zanko J Med Sci 2015; 15 (47) :10-22
URL: http://zanko.muk.ac.ir/article-1-50-en.html
URL: http://zanko.muk.ac.ir/article-1-50-en.html
Abstract: (3619 Views)
ABSTRACT
Background: Phosphate discharges from domestic and industrial wastewater to water bodies, causing environmental problems such as eutrophication or algae bloom Therefore, it is necessary to treat those effluents prior to discharge into the environment. So, the aim of this study was to evaluate the phosphor adsorption from aqueous solution using Multi Wall Carbon Nanotubes as a sorbent.
Material and Methods: This study was performed experimentally in laboratory scale and in a batch system. characterized by analyzing scanning electron microscope (SEM). The effects of operational parameters such as adsorbent dosage, pH, initial phosphor concentration, on initial phosphor removal were evaluated. The isotherm and kinetics of phosphor adsorption were studied.
Result: The results showed that rising of pH and adsorbent dosage increased phosphor adsorption, whereas the phosphor adsorption decreased by phosphor concentration. Also The results data for adsorption of The phosphor adsorption onto Multi Wall Carbon Nanotubes fitted well to Langmuir isotherm and maximum dye adsorption capacity (Q0) of Multi Wall Carbon Nanotubes was 28.60mg/g. Pseudo-first, second-first order kinetics and Intraparticle diffusion models were adopted to evaluate data and elucidate the kinetics adsorption process. The experimental data fitted well to pseudo-second order kinetic model.
Conclusion: The results showed that the Multi Wall Carbon Nanotubes as a adsorbent with high adsorption capacity might be a suitable alternative to remove contamination.
Type of Study: Research |
Subject:
Special
Received: 2015/01/21 | Accepted: 2015/02/21 | ePublished: 2015/02/21
Received: 2015/01/21 | Accepted: 2015/02/21 | ePublished: 2015/02/21
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